Title:
DIESEL ENGINE EXHAUST PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/162068
Kind Code:
A1
Abstract:
When DPF regeneration is restarted after automatically restarting an engine from an interruption in DPF regeneration, DPF regeneration control is corrected in such a manner that temperature increases due to DPF regeneration are minimized by taking account of the increment in the oxygen concentration of the exhaust due to the interruption of DPF regeneration. Specifically, the restarting of DPF regeneration is disabled by post injection for a prescribed disabling time ΔT1 from an automatic engine restart time t1, and the post injection quantity is corrected to the low side.
Inventors:
YAMAMOTO, Risa (())
Application Number:
JP2011/062049
Publication Date:
December 29, 2011
Filing Date:
May 26, 2011
Export Citation:
Assignee:
NISSAN MOTOR CO., LTD. (2 Takara-cho, Kanagawa-ku Yokohama-sh, Kanagawa 23, 〒2210023, JP)
日産自動車株式会社 (〒23 神奈川県横浜市神奈川区宝町２番地 Kanagawa, 〒2210023, JP)
日産自動車株式会社 (〒23 神奈川県横浜市神奈川区宝町２番地 Kanagawa, 〒2210023, JP)
International Classes:
F01N3/02; B01D46/42; F02D17/00; F02D29/02; F02D41/38; F02D45/00
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-k, Tokyo 44, 〒1040044, JP)
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